<template>
	<view class="settle-container">
		<!-- 全选 -->
		<view class="radio-box">
			<radio :checked="fullCheck" color="#c00000" @click="changeAllCheck">全选</radio>
		</view>
		<!-- 价格 -->
		<view class="price-box">
			<view>合计：</view>
			<view class="price">￥{{settlePrice}}</view>
		</view>
		<!-- 结算按钮 -->
		<view class="settle-btn" @click="settleHandler">结算({{settleCount}})</view>
	</view>
</template>

<script>
	import {
		mapGetters,
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-settle",
		computed: {
			...mapGetters('my_cart', ['settleCount', 'total', 'settlePrice']),
			...mapGetters('my_user', ['addstr']),
			...mapState('my_cart', ['cart']),
			...mapState('my_user', ['token']),
			fullCheck() {
				return this.settleCount === this.total && this.cart.length !== 0
			}
		},
		data() {
			return {
				// 倒计时的秒数
				seconds: 3,
				// 定时器的 Id
				timer: null
			};
		},
		methods: {
			...mapMutations('my_cart', ['updateAllState']),
			...mapMutations('my_user', ['updateRedirectInfo']),
			changeAllCheck() {
				this.updateAllState(!this.fullCheck)
			},
			//点击结算回调
			settleHandler() {
				if (!this.settleCount) return uni.$showMsg('请选择商品！')

				if (!this.addstr) return uni.$showMsg('请选择收货地址！')

				// if(!this.token) return uni.$showMsg('请先登录！')
				if (!this.token) return this.delayNavigate()

				this.payOrder()
			},
			async payOrder() {
				// 1. 创建订单
				// 1.1 组织订单的信息对象
				const orderInfo = {
					// order_price: this.checkedGoodsAmount,
					order_price: 0.01,
					consignee_addr: this.addstr,
					goods: this.cart.filter(x => x.goods_state).map(x => ({
						goods_id: x.goods_id,
						goods_number: x.goods_count,
						goods_price: x.goods_price
					}))
				}

				// 1.2 发起请求创建订单
				const {
					data: res
				} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')

				// 1.3 得到服务器响应的“订单编号”
				const orderNumber = res.message.order_number

				// 2. 订单预支付
				// 2.1 发起请求获取订单的支付信息
				const {
					data: res2
				} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {
					order_number: orderNumber
				})
				// 2.2 预付订单生成失败
				if (res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')
				// 2.3 得到订单支付相关的必要参数
				const payInfo = res2.message.pay

				// 3. 发起微信支付
				// 3.1 调用 uni.requestPayment() 发起微信支付
				const [err, succ] = await uni.requestPayment(payInfo)
				// 3.2 未完成支付
				if (err) return uni.$showMsg('订单未支付！')
				// 3.3 完成了支付，进一步查询支付的结果
				const {
					data: res3
				} = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {
					order_number: orderNumber
				})
				// 3.4 检测到订单未支付
				if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
				// 3.5 检测到订单支付完成
				uni.showToast({
					title: '订单支付完成！',
					icon: 'success'
				})
			},
			// 延时导航到 my 页面
			delayNavigate() {
				this.seconds = 3

				this.showTips(this.seconds)

				this.timer = setInterval(() => {
					this.seconds--

					if (this.seconds <= 0) {
						clearInterval(this.timer)

						uni.switchTab({
							url: '/pages/my/my',
							success: () => {
								this.updateRedirectInfo({
									openType: 'switchTab',
					  		from: '/pages/cart/cart'
								})
							}
						})

						return
					}

					this.showTips(this.seconds)
				}, 1000)
			},
			// 展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: 'none',
					title: '请登录后再结算！' + n + '秒之后自动跳转到登录页',
					mask: true,
					duration: 1500
				})
			}
		}
	}
</script>

<style lang="scss">
	.settle-container {
		display: flex;
		align-items: center;
		justify-content: space-between;
		position: fixed;
		bottom: 0;
		left: 0;
		background-color: white;
		height: 50px;
		width: 100%;
		padding-left: 5px;
		font-size: 14px;

		.radio-box {
			display: flex;
			align-items: center;
		}

		.price-box {
			display: flex;
			align-items: center;

			.price {
				font-size: 15px;
				font-weight: bold;
				color: #c00000;
			}
		}

		.settle-btn {
			background-color: #c00000;
			color: white;
			height: 50px;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>
